add_executable(121_test_demux 121_test_demux.cpp xvideo_view.cpp xvideo_view.h 
    xsdl.cpp xsdl.h 
    xcodec.h xcodec.cpp
    xdecode.h xdecode.cpp)
target_link_libraries(121_test_demux  avformat avcodec avutil SDL2::SDL2)
set_out_path(121_test_demux)
set_fff(121_test_demux)
